B- Actually list the powers that care about the synergies mentioned? This thing makes it easy to find all Vigilantes or whatever, but it's not that helpful at telling you what actually works with them. The 'special powers that work differently with Vigilantes' page only lists stuff like Strange's power, but it doesn't bother with synergies like Vigilante Sidekick. I care way more about the latter when trying to build an army with Batman or whoever.
I'll second this and say it would be very useful to have this. The stuff in the "Books of..." threads only work in one direction. For example, if I draft Professor X and want to take advantage of his Mutant Mind Link, I can easily find the list of all Mutants in his thread, or in this one.
However, if I've drafted some other Mutant, let's say Angel for example, there's no easy way for me to find out which powers affect Mutants, and thus realize that drafting Professor X would be a good idea.